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http://dx.doi.org/10.5916/jkosme.2011.35.4.379

A Study on the Engine Performance and Emission Characteristics in a LP EGR System with Electronic Throttle Control  

Park, Jun-Heuk (경원대학교 대학원 기계공학과)
Lim, Jong-Han (경원대학교 기계.자동차공학과)
Yoon, Jun-Kyu (경원대학교 기계.자동차공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.35, no.4, 2011 , pp. 379-387 More about this Journal
Abstract
Research and development of LP EGR system for the performance improvement and emission reduction on diesel engine is proceeding at a good pace. LP EGR system seems to be helpful method to further reduce$NO_x$ emissions while maintaining PM emissions at a low level because the boost pressure is unchanged while varying EGR rate. This study is experimentally conducted on a 2.0L common rail DI engine at the medium load condition (2000 rpm, BMEP 1.0 MPa, boost pressure 181.3 kPa) that difficult to use large amount of EGR gas because of deteriorations of performance and fuel consumption. And we investigated the characteristics of performance and fuel consumption while varying EGR systems. The overall results using LP EGR system equipped with ETC identified benefits on reduction of PM and improvement of fuel consumption and thermal efficiency while keep the $NO_x$ level compared to HP EGR and LP EGR with back pressure valve.
Keywords
ETC (Electronic Throttle Control); LP EGR (Low Pressure Exhaust Gas Recirculation); VGT(Variable Geometry Turbocharger); $NO_x$ (Nitrogen Oxides); PM (Particulate Matter); BMEP (Brake Mean Effective Pressure);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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